Evolution is the change in organisums thought a very long time.
The early stages of life were based on that life is fixed or permanent. These ideas came from religion, the creation story of how God created life in seven days. This theory was the main one because there was no technoligy at that time, since religion had its own theory. It gave people of an understanding of how life became on eath. The theory of evolution was rediculous to most people because to the religious point of view that did not exist.
ADAPTATION
Is changing characteristics to sarvive in a different type of environment
The change in the animal will pass of to its offspring
Animals will adapt if forced by nature or man
A great example of this would be a kangraoo. It developed its long legs to run away from its predators.
LAMARCK
Propsed that animals must change overtime. Some animals have similar features.
He came up with the theory of evolution.
Most offspring inherit traits from parents throgh DNA and pass it down
Though the procces of reproduction of different species, physical features are shown on that new species.
VOYAGE OF THE BEGAL 1831
The main misson was to map out certain areas of the world.
Charles Darwin was on the Begal to study plants and animals on the voyage
22 years old
Kept extensive journals though the whole trip and recorded everything
Discovered that species change to their adapting enviorment
DARWINS ORIGIN SPECIS
Many animals are descendants from other species
Most animals are descendants of ancestrial species
They have adapted to environments
Natural Selection
It is that the stronger will survive and the weaker will not.
Evidence of Evolution
The fossil records keep remains or makings of organisms, and is easier to identify. Most fossils are found in the sedementry rock, which is deep in the ground. Also, the fossil record is the collection of fossil remains.
Geographic Distribution
All the continents were connected at one point.
For example mammals in the South American tropics have similarities in the African tropics
Geographic distribution was a clue of which animals evolve
Similarities in Structure
The for limbs of all mammals consist of the same skeletal parts
Homogenous structures all originaly functioned one way from ancestrial specis
Vestigal stuctures were important in ancestrial mammals put modern mammals do not have this
Similarties in development
Many organisms have similar embryos
Also similar stages of development
Embrios also show that all mammals have a common ancester
Molecular Biology
If two species have similar genes they might be related
Such as humans an primates have a similar DNA squence
NATURAL SELECTION IN EVOLUTION
Theory of Natural Selection
Population is a group of individuals in the same area
Some individuals will change overtime do to Natural Selection
More species mean more resources and the offspring of the animals fewer of the offsping would survive do natural selection. This also applies to members of the same species
Artificial Selection
Selective breeding of animals and plants.
Humans have modified species over thousands of years
This produced a lot of change in a short period of time
Pesticides
There are many different chemicals used to get rid of pesticides. Overtime pesticides and other incects become resistant to the chemical. Resistant individuals survive and reproduce more resistant insects.
DIVERSITY OF LIFE
What is a species?
It is a living organism.
The main concept of a species is the reproduction of species within a group
One species interbreeding can not interbreed with members of another species unless it is asexual.
From Microevolution to Macroevlution
Microevolution is the change in allel frequency
Macroevolution is dramatic change in fossil record
Reproductive barriers bettween species
Reproductive isolation a barrior which does not allow two species from interbreeding.
Also two different species might have different breeding seasons.
QUESTIONS
What was Darwins mission on the Begal
How old was Darwin on his voyege
What is Artifical selection
An example of similaritres in structures
The differnce bettween Micro and Macro
What is a species
True or False can two differnt species imbreed with one another
Yes or No were all the continets conected at one point
EVOLUTION
The early stages of life were based on that life is fixed or permanent. These ideas came from religion, the creation story of how God created life in seven days. This theory was the main one because there was no technoligy at that time, since religion had its own theory. It gave people of an understanding of how life became on eath. The theory of evolution was rediculous to most people because to the religious point of view that did not exist.
ADAPTATION
LAMARCK
Propsed that animals must change overtime. Some animals have similar features.
VOYAGE OF THE BEGAL 1831
The main misson was to map out certain areas of the world.DARWINS ORIGIN SPECIS
Many animals are descendants from other speciesNatural Selection
It is that the stronger will survive and the weaker will not.Evidence of Evolution
The fossil records keep remains or makings of organisms, and is easier to identify. Most fossils are found in the sedementry rock, which is deep in the ground. Also, the fossil record is the collection of fossil remains.Geographic Distribution
Similarities in Structure
Similarties in development
Molecular Biology
NATURAL SELECTION IN EVOLUTION
Theory of Natural Selection
Artificial Selection
Pesticides
There are many different chemicals used to get rid of pesticides. Overtime pesticides and other incects become resistant to the chemical. Resistant individuals survive and reproduce more resistant insects.DIVERSITY OF LIFE
What is a species?
From Microevolution to Macroevlution
Reproductive barriers bettween species
QUESTIONS